Improper input validation in Dovecot
CVE-2016-8652
The auth component in Dovecot before 2.2.27, when auth-policy is configured, allows a remote attackers to cause a denial of service (crash) by aborting authentication without setting a username.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.482 (98.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.482 · newest: 0.482 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.securityfocus.com/bid/94639 (VDB Entry, Third Party Advisory, vdb-entry)
- www.openwall.com/lists/oss-security/2016/12/02/4 (mailing-list, Mailing List, Third Party Advisory)
- dovecot.org/pipermail/dovecot-news/2016-December/000333.html (Vendor Advisory, mailing-list, Release Notes)
- www.openwall.com/lists/oss-security/2016/12/05/12 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-8652?
- CVE-2016-8652 is a medium-severity vulnerability in Dovecot, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2017-02-17.
- How severe is CVE-2016-8652?
- Medium severity. CVSS v3 base score is 5.9 out of 10.